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Thursday, May 7, 2020 | History

2 edition of Late-Wisconsin Glaciation of Southwestern Newfoundland (with Special Reference to the Stephenville Map-Area). found in the catalog.

Late-Wisconsin Glaciation of Southwestern Newfoundland (with Special Reference to the Stephenville Map-Area).

Geological Survey of Canada.

Late-Wisconsin Glaciation of Southwestern Newfoundland (with Special Reference to the Stephenville Map-Area).

by Geological Survey of Canada.

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Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesPaper (Geological Survey of Canada) -- 73-40
ContributionsBrookes, I.A.
ID Numbers
Open LibraryOL21905285M

Glacial History and Palaeoecology of Northeastern Nouveau-QuCbec and Northern Labrador Between mid-July and mid-August , a reconnaissance was made of a large tract of subarctic and arctic terrain bounded by Schefferville, Fort Chimo and the Torngat Mountains north to latitude 59”35’ N (Fig. 1). Vegetation history of the deserts of southwestern North America; the nature and timing of the late Wisconsin-Holocene transition. In: W. F. Ruddiman and H. E. Wright Jr., eds. North America and Adjacent Oceans during the Last Deglaciation.

Cambridge Core - Geomorphology and Physical Geography - Geomorphology - by Robert S. AndersonCited by: This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation.

It is a maturely dissected plateau that has been extensively modified by Pleistocene glaciations, particularly the late Wisconsin glaciation. Within the Bight watershed it is a mostly high and rugged plateau region formed of uplifted marine sandstones and shales, and is characterized by flat-topped hills and deeply dissected valleys. The Great Basin stretches from southern Idaho to Southern California which includes all, or portions, of Oregon, California, Nevada, Wyoming, Utah, and Colorado. Its southwestern parts are now known as the Mojave and Colorado Deserts of Southern California.


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Late-Wisconsin Glaciation of Southwestern Newfoundland (with Special Reference to the Stephenville Map-Area) by Geological Survey of Canada. Download PDF EPUB FB2

Get this from a library. Late-Wisconsin glaciation of southwestern Newfoundland (with special reference to the Stephenville map-area). [I A Brookes]. The Wisconsin glaciation extended from approximat to 11, years ago, between the Sangamonian Stage (known globally as the Eemian stage) and the current interglacial, the Holocene.

The maximum ice extent occurred approximat–21, years ago during the last glacial maximum, also known as the Late Wisconsin in North America. The purpose of this paper is to describe the detailed sedimentology and age data of Quaternary sediments in coastal exposures at Highlands, southwest Newfoundland.

These exposures are critical to an ongoing debate on the extent and timing of a Late Wisconsinan readvance across the lowlands around St. George's by: During late Wisconsin time the major glacial advance in the western part of the region investigated reached its farthest extent south in at least three pulses: 21, 19, yrs ago.

The oscillating retreats were interrupted by three documented. Lac La Jannaye, Quebec - Newfoundland / by I.M. Stevenson; Geology of Sunnyside map-area, Newfoundland, 1 N/ report and map / by W.D.

McCartney; Late-Wisconsin glaciation of southwestern Newfoundland (with special reference to the Stephenville map-a The geology of the Michikamau Intrusion, Labrador (13 L, 23 I) / [by] R. Emslie. The absence of igneous and metamorphic clasts of Canadian Shield origin in the Saskatchewan gravels and sands (preglacial) valley fills in seven active gravel pits studied over a 5 yr period, coupled with 29 radiocarbon dates (21, yr B.P.), suggest that Laurentide glaciation prior to the late Wisconsin did not reach the Edmonton by: Late Wisconsinan stratigraphy and chronology of southern St.

George's Bay, Newfoundland: A re-appraisal Article (PDF Available) in Canadian Journal of Earth Sciences 38(5) February QUATERNARY RESEA () Time of Maximum Late Wisconsin Glaciation, West Coast of Canada BERTRAND BLAISE,*'1 JOHN J.

CLAGUE,t AND ROLF W. MATHEWES$ *Pacific Geoscience Center, Geological Survey of Canada, P.O. BoxWest Saanich Rd., Sidney, British Columbia, Canada V8L 4B2; (Terrain Sciences Division, Geological Survey of Canada, Cited by: Seafloor imagery in the present paper can be compared with that from the littoral zone off southwestern Newfoundland (Shaw et al., xmm ( x DPI) Fig.

The Alaska PaleoGlacier Atlas is a geospatial summary of Pleistocene glaciation across Alaska. The layers in the atlas depict: 1) the extent of glaciers during the late Wisconsin glaciation (also known as the Last Glacial Maximum, ab years ago), and 2) the maximum extent reached during the last 3 million years by the northwestern Cordilleran Ice Sheet, ice caps, and valley glaciers.

Late-Wisconsin glaciation of southwestern Newfoundland (with special reference to the Stephenville map-area). Geological Survey of Canada, Ottawa, Paper31 p. Google ScholarCited by: The Antevs Library Online Author Title Catalog The catalog includes nearly titles.

The following list, arranged alphabetically by first author for dissertations & theses, books and reprints; then by journal, map and media; can be searched using your browser's "FIND" (ctrl-F) utility. The Canadian Shield, also called the Laurentian Plateau, or Bouclier canadien (French), is a large area of exposed Precambrian igneous and high-grade metamorphic rocks (geological shield) that forms the ancient geological core of the North American continent (the North American Craton or Laurentia).Composed of igneous rock resulting from its long volcanic history, the area is covered by a Country: Canada, United States.

covered northern New Jersey, and the most recent glaciation was during the late Wisconsinan substage, ab years ago. The action of each ice sheet modified the landscape by deeply scouring valleys, wearing down and streamlining bedrock ridges, hills, and slopes, and by erodingFile Size: KB.

The physical landscape and surface geology of the Chicago area are the legacy of the most recent of several continental glaciations.

Although glaciers invaded the Chicago area repeatedly during the Quaternary period, the span of geologic time from about million years ago to the present, the youngest, the Wisconsin-episode glacier, melted back into the Lake Michigan basin ab.

Andrews, J. (b) The Late Wisconsin Glaciation and deglacia‐tion of the Laurentide Ice Sheet. In: North America and Adjacent Oceans during the Last Deglaciation, Vol. K‐3 (Eds W. Ruddiman & H. E.J. Wright), pp. 13 – Geological Society of America, Boulder, Colorado.

The lower Naknek River in southwestern Alaska dissects thick (~20m) exposures of Pleistocene glaciogenic sediments. The stratigraphy of the deposits and their physical, geochemical, mineralogical, and geochronological properties were studies to determine the number and timing of glacial advances represented.

Multivariate data reduction methods (cluster and principal component analyses) were Author: Caleb H. Thompson. Field problems in determining the maximum extent of Pleistocene glaciation along the eastern Canadian seaboard — a geographer's point of view. – in Löve, A. and Löve, D. (Eds.), North Atlantic Biota and their History.

Pergamon Press, by: The moraines included in the late Wisconsin are not concentric with the earlier group * * *. In Illinois the early Wisconsin is well exposed outside the late Wisconsin series, probably better than in any other part of the glaciated district.

Concerning the base of the Wisconsin drift, Leverett (, p. ) stated:Cited by: 9. The last glacial period was the most recent glacial period within the current ice age occurring during the last years of the Pleistocene, from approximatelyto 10, years ago. [1]During this period there were several changes between glacier advance and retreat.

The maximum extent of glaciation was approximat years ago. While the general pattern of global cooling and glacier. Abstract. Sediment mass failure is a major process during Cenozoic development of the southwestern Grand Banks of Newfoundland margin. Recently acquired seafloor multibeam and seismic reflection data provide evidence of stacked and regionally extensive mass Cited by: 5.Synopsis.

Although the paleontological evidence is sketchy, the genus Salvelinus appears to have arisen some 5–10 million years (My) ago. During most of the last My, and for a long period before that, the charrs existed in periglacial environments just beyond the fringes of great ice by: Palynology and paleoecology of the Port Moody Interstade in southwestern British Columbia.

Geological Assn. of Canada, Memorial University of Newfoundland, Abstracts Vol. p Mathewes, R.W. Late-Pleistocene outburst flooding recorded by reworked Tertiary pollen in southwestern British Columbia, Canada.